EP2093530A1 - Dispositif de fonte, notamment de métaux - Google Patents
Dispositif de fonte, notamment de métaux Download PDFInfo
- Publication number
- EP2093530A1 EP2093530A1 EP09002029A EP09002029A EP2093530A1 EP 2093530 A1 EP2093530 A1 EP 2093530A1 EP 09002029 A EP09002029 A EP 09002029A EP 09002029 A EP09002029 A EP 09002029A EP 2093530 A1 EP2093530 A1 EP 2093530A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crucible
- guide plate
- pot
- annular gap
- cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002844 melting Methods 0.000 title claims abstract description 15
- 230000008018 melting Effects 0.000 title claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 6
- 239000002184 metal Substances 0.000 title claims abstract description 6
- 150000002739 metals Chemical class 0.000 title claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 125000006850 spacer group Chemical group 0.000 claims abstract description 19
- 239000012809 cooling fluid Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 101100298225 Caenorhabditis elegans pot-2 gene Proteins 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B35/00—Apparatus not otherwise provided for, specially adapted for the growth, production or after-treatment of single crystals or of a homogeneous polycrystalline material with defined structure
- C30B35/002—Crucibles or containers
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/04—Refining by applying a vacuum
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/18—Electroslag remelting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/16—Remelting metals
- C22B9/20—Arc remelting
Definitions
- the invention relates to a device for melting in particular of metals with a crucible and a crucible coaxially surrounding hollow cylindrical guide plate, so that between the cylindrical outer wall of the crucible and the inner wall of the guide plate, an annular gap is formed, which serves to guide a cooling fluid.
- Such devices are also referred to as melt stations used in vacuum arc furnaces and electroslag remelters.
- Such a device is in the DE 1 093 926 C described.
- the crucible is arranged in a cooling pot, the bottom of which has a central inflow and a laterally arranged outflow for a cooling fluid.
- the baffle is located between the crucible and the cooling pot, so that the cooling fluid within the baffle on the outside of the crucible, ie in the annular gap between the cylindrical outer wall of the crucible and the inner wall of the baffle, up and outside of the baffle on the inside of the cooling pot can flow back.
- the width of the annular gap can be relatively small and z. B. between 5 and 12 mm.
- the invention is thus based on the task of designing the cooling of the crucible so that even with a replacement of the crucible by a crucible with a different diameter from the nominal diameter, the cooling capacity is maintained.
- the invention provides that the baffle consists of two semi-cylindrical shells, which are detachably connected to each other at their longitudinal edges, and that spacers are arranged in the annular gap, which determine the width of the annular gap.
- the inner diameter of the baffle adapts to the outer diameter of the crucible by either stretching or compressing the material of the shell as the shells are joined together at their longitudinal edges, engaging the spacers supporting the outer wall of the crucible ,
- the width of the annular gap remains unchanged by the specified size, since it is determined by the dimensions of the spacers.
- the spacers are attached to the trays.
- the spacers are formed by short round bars which are arranged parallel to the longitudinal axis of the guide plate, they have only a narrow linear contact with the crucible and the guide plate, so that the heat transport through the spacers remains low.
- the invention further provides for the guide plate to bear tightly against its upper edge on a ring which is arranged in the upper region of the crucible and whose inner edge is at a distance from the outer wall of the crucible comply.
- the ring is secured below and at a distance from a flange formed at the top of the crucible.
- the cooling fluid therefore flows through the ring and over its top to the outside of the baffle.
- the device has a cooling pot for receiving the crucible, wherein the cooling pot has a cylindrical shell and a bottom and wherein, in a crucible inserted into the crucible of the crucible of the crucible rests on the upper edge of the cooling pot so that the cooling pot is closed.
- the cooling pot near the ground has a water inlet nozzle and, about in the middle region, a water outlet.
- the bottom of the crucible consists of two layers, between which fluid channels are formed, which open into the lateral surface of the crucible and which are in fluid communication with the water inlet nozzle.
- one or more coils are provided, which are supported by an intermediate pot, which is arranged between the baffle and the cooling pot and sealed with its upper edge rests against the ring.
- the ring closes a further annular gap between the baffle and the intermediate pot, so that the major part of the cooling fluid flows substantially through the first-mentioned annular gap between the baffle and the crucible whose width is optimized with respect to a good heat dissipation at the smallest possible flow of the cooling fluid.
- the bottom of the intermediate pot has an opening through which a tube forming a portion of the fluid connection is passed.
- Part of the crucible heat is also transferred to the fluid in the further annular gap.
- the ring In order to allow adapted thereto low outflow of the cooling fluid from the further annular gap between the guide plate and the intermediate pot, the ring is provided with openings between its underside and its upper side, which open into the further annular gap. The breakthroughs are so small that the flow through the other annular gap is significantly smaller than through the annular gap between baffle and crucible.
- the distribution of the cooling fluid flow onto the annular gap and the further annular gap can also be realized with a one-piece guide plate.
- Fig. 1 shows a device according to the invention, hereinafter called melting station.
- This consists of a crucible 1, which is arranged in a cooling pot 2.
- the crucible 1 has a flange 3, with which it rests on the upper edge of the cooling pot 2.
- a cooling fluid for.
- a water inlet nozzle is provided in the wall of the cooling pot 2 above the ground. This leads into a box 5 arranged on the bottom of the cooling pot 2 and in its center, in which a tube 6 is inserted from above.
- a water outlet 7 is arranged in the central region of the wall of the cooling pot 2.
- an intermediate pot 8 which carries a coil, not shown here, an induction heating for the crucible 1.
- the crucible 1 is further closely surrounded by a hollow cylindrical, consisting of two shells baffle 9. Details of this structure are explained below.
- FIG. 2 or 4 This shows the Fig. 2 or 4 the upper part of the melting station.
- Below the flange 3 and at a distance to a ring 10 is bolted to the flange 3.
- Spacers 11 provide the desired Distance.
- both the baffle 9 and the intermediate pot 8 abut, the shock is sealed in each case.
- a downwardly projecting web 12 ensures centering of the intermediate pot 8.
- the ring 10 is provided with openings 13 in the form of holes which connect a further annular gap 28 between the guide plate 9 and the intermediate pot 8 with the area above the ring 10.
- the inner diameter of the ring 10 is greater than the outer diameter of the crucible 1, so that there is a gap 14 between the ring 10 and crucible 1.
- Fig. 3 shows the bottom of the melting station.
- the bottom 15 of the crucible 1, which is held on this by means of brackets 16, consists of two layers 17a, 17b, between which fluid channels 18 are located. These are in fluid communication with the above-mentioned tube 6, which is connected to the lower layer 16a.
- the lower end of the guide plate 9 ends in the region of the bottom 15th
- the bottom 19 of the intermediate pot extends below the bottom 15 of the crucible 1 and rests on the box 5. It has a central opening 20, through which the tube 6 is guided, so that it is able to immerse in the box 5.
- the Fig. 4 shows a detailed representation in the region of the ring 10.
- a first seal 21 seals the edge of the guide plate 9 with respect to the ring 10, so that the water flowing upward within the guide plate 9, must pass through the gap 14.
- a second seal 22 seals the edge of the intermediate pot 8 with respect to the ring 10, so that the water flowing through the further annular gap 28 between guide plate 9 and intermediate pot 8 is passed through the openings 13.
- Fig. 5 shows a cross section through the melting station. It can be seen that the baffle is divided at a central plane 23 into two shells 24a, 24b, each forming a half hollow cylinder, and which are releasably connected to each other. Between the shells 24a, 24b and the crucible 1, an annular gap 25, the width of which is determined by spacers 26 is formed.
- the spacers 26 are secured to the inside of the shells 24a, 24b, preferably along their abutting longitudinal edges. These are short rods, which are aligned vertically, that is parallel to the longitudinal axis of the arrangement.
- a plurality of block-like jaws 27 are welded on the outer sides of the shells 24a, 24b along their abutting longitudinal edges, which are screwed together by screws not shown here, to hold the shells 24a, 24b together ,
- the shells 24a, 24b are released from the old crucible and placed around the new crucible 1 and screwed together.
- the attached to the inside of the shells 24a, 24b spacers 26 attach themselves to the outer wall of the crucible 1, so that the resulting annular gap 25 has the same width as before.
- the shells are stretched by tightening the screw until the longitudinal edges of the shells 24a, 24b abut against each other.
- the provided with a baffle 9 new crucible 1 is in the cooling pot 2 used, with the already located therein intermediate pot aligns with the ring 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12001743.9A EP2466239B1 (fr) | 2008-02-13 | 2009-02-13 | Dispositif de fonte, notamment de métaux |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810008993 DE102008008993A1 (de) | 2008-02-13 | 2008-02-13 | Vorrichtung zum Schmelzen insbesondere von Metallen |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12001743.9A Division EP2466239B1 (fr) | 2008-02-13 | 2009-02-13 | Dispositif de fonte, notamment de métaux |
EP12001743.9 Division-Into | 2012-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2093530A1 true EP2093530A1 (fr) | 2009-08-26 |
EP2093530B1 EP2093530B1 (fr) | 2012-08-08 |
Family
ID=40612841
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20090002029 Active EP2093530B1 (fr) | 2008-02-13 | 2009-02-13 | Dispositif de fonte, notamment de métaux |
EP12001743.9A Expired - Fee Related EP2466239B1 (fr) | 2008-02-13 | 2009-02-13 | Dispositif de fonte, notamment de métaux |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12001743.9A Expired - Fee Related EP2466239B1 (fr) | 2008-02-13 | 2009-02-13 | Dispositif de fonte, notamment de métaux |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP2093530B1 (fr) |
DE (1) | DE102008008993A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT12783U1 (de) * | 2011-08-05 | 2012-11-15 | Plansee Se | Tiegel zur kristallzucht |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116555571B (zh) * | 2023-04-27 | 2024-05-10 | 上海开鸿环保科技有限公司 | 危废污泥电热熔融资源化处理装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093926B (de) | 1959-08-05 | 1960-12-01 | Heraeus Gmbh W C | Einrichtung zur Ablenkung des Lichtbogens in einem Vakuum-Lichtbogenofen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2357535C3 (de) * | 1973-11-17 | 1989-01-12 | Körtvélyessy, László, Dipl.-Phys., 4190 Kleve | Hochtemperatur-Wärmeisolation |
US4581745A (en) * | 1985-01-16 | 1986-04-08 | Timet | Electric arc melting apparatus and associated method |
-
2008
- 2008-02-13 DE DE200810008993 patent/DE102008008993A1/de not_active Withdrawn
-
2009
- 2009-02-13 EP EP20090002029 patent/EP2093530B1/fr active Active
- 2009-02-13 EP EP12001743.9A patent/EP2466239B1/fr not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1093926B (de) | 1959-08-05 | 1960-12-01 | Heraeus Gmbh W C | Einrichtung zur Ablenkung des Lichtbogens in einem Vakuum-Lichtbogenofen |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT12783U1 (de) * | 2011-08-05 | 2012-11-15 | Plansee Se | Tiegel zur kristallzucht |
Also Published As
Publication number | Publication date |
---|---|
EP2093530B1 (fr) | 2012-08-08 |
EP2466239B1 (fr) | 2015-01-07 |
EP2466239A1 (fr) | 2012-06-20 |
DE102008008993A1 (de) | 2009-08-20 |
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